test(backup mas): use checkDeviceIsConnectedKeyBackup instead at lo…

…oking at the *Security & Privacy* tab

playwright/e2e/crypto/backups-mas.spec.ts

@@ -11,6 +11,7 @@ import { registerAccountMas } from "../oidc";
 import { isDendrite } from "../../plugins/homeserver/dendrite";
 import { TestClientServerAPI } from "../csAPI";
 import { masHomeserver } from "../../plugins/homeserver/synapse/masHomeserver.ts";
+import { checkDeviceIsConnectedKeyBackup } from "./utils";
 
 // These tests register an account with MAS because then we go through the "normal" registration flow
 // and crypto gets set up. Using the 'user' fixture create a user and synthesizes an existing login,
@@ -24,8 +25,7 @@ test.describe("Encryption state after registration", () => {
         await page.getByRole("button", { name: "Continue" }).click();
         await registerAccountMas(page, mailpitClient, `alice_${testInfo.testId}`, "[email protected]", "Pa$sW0rD!");
 
-        await app.settings.openUserSettings("Security & Privacy");
-        await expect(page.getByText("This session is backing up your keys.")).toBeVisible();
+        await checkDeviceIsConnectedKeyBackup(app, "1", true);
     });
 
     test("user is prompted to set up recovery", async ({ page, mailpitClient, app }, testInfo) => {